Campbell Scientific CR200X CR200/CR200X-series Dataloggers - Page 144
Protocols, 3 Initiating Telecommunications, 4 Data Retrieval
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Section 13. Telecommunications and Data Retrieval NOTE: The CR200(X) operates at a baud rate of 9600 baud. Attempting to connect at a higher baud rate will result in communications errors. 13.2 Protocols The primary telecommunication protocol for the CR200(X) is PakBus (PakBus Overview (p. 133)). ModBus is also supported on board (Alternate Telecoms Resource Library (p. 139)). 13.3 Initiating Telecommunications Telecommunications sessions are initiated by a PC running Campbell Scientific datalogger support software (Support Software p. 143). Once telecommunication is established, the PC issues commands to send programs, set clocks, collect data, etc. Because data retrieval is managed by the PC, several PCs can have access to a CR200(X) without disrupting the continuity of data. 13.4 Data Retrieval Data tables are transferred to PC files through a telecommunications link (Telecommunications and Data Retrieval (p. 131)). 13.4.1 Via Telecommunications Data are usually transferred through a telecommunications link to an ASCII file on the supporting PC using Campbell Scientific datalogger support software (Support Software (p. 143)). See also the manual and Help for the software package being used. 13.4.2 Data Format on Computer CR200(X) data stored on a PC via support software is formatted as either ASCII or Binary depending on the file type selected in the support software. Consult the software manual for details on the various available data file formats. 132